# US 12,759,178 B2 · Stamping machine for stamping labels and covers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,178 B2 - Document ID: US12759178B2 - Status: Granted - Kind: B2 - Application number: 17/641,860 - Filed: 2020-09-10 - Published: 2022-10-13 - Granted: 2026-10-13 - Earliest claimed: 2019-09-10 - Assignees: Berhalter AG - Applicants: Berhalter AG - Inventors: Markus Steiner; Mathias Schön; Claudia Visentin; Jürg Thurnherr - Web page: https://patentgrep.com/patent/US12759178B2 ## CPC - B26D 5/086: {Electric, magnetic, piezoelectric, electro-magnetic means} - B26D 7/18: Means for removing cut-out material or waste - B26F 1/40: using a press, e.g. of the ram type (presses in general B30B) - B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04) - B26F: PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING (marking-out, perforating or making buttonholes A41H25/00; shoemaking A43D; surgery A61B; punching metal B21D; drilling metal B23B; cutting of metal by applying heat locally, e.g. flame cutting, B23K; cutting by abrasive fluid jets B24C5/02; details common to machines for severing B26D; drilling wood B27C; drilling stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; of glass C03B; of leather C14B; of textile materials D06H; for light guides G02B6/25; of tickets G07B) ## Abstract A stamping machine for labels and covers includes a servomotor as a driving element. The servomotor can be directly or indirectly connected to a spindle which causes the stamp to move forward in a linear manner. ## Claims ### Claim 1 A stamping machine for stamping labels and covers for containers made from paper, cardboard, metal, or laminated materials manufactured therefrom from film supplied on a web, the stamping machine comprising: a feed unit configured to transport the film from a coil to a stamping tool, the coil being a web store for the film to be stamped, and the feed unit includes a drivable feed device configured to take the film as a film web from the web store and for feeding the film to a stamping device that includes the stamping tool; the drivable feed device includes two interacting rotatably driven rolls, the two interacting rotatably driven rolls each include a rubber jacket arranged on a tube, the tubes are each carried by a plurality of bearing rings, the bearing rings of each tube are fastened to a respective shaft such that the tubes are rotatably mounted on outer ones of the bearing rings for coaxial rotation about the respective shaft via the bearing rings, and a plurality of magnets are fastened on each shaft and arranged parallel to axes of the shafts, the plurality of magnets on each shaft attract the two interacting rotatably driven rolls toward each other over an axial length thereof by mutual attractive magnetic forces; the stamping tool including a stamping punch, a die on a base plate with guides for the stamping punch during stroke movements, and a drive member for generating the stroke movement of the stamping punch; a take-off device configured to take a stamped lattice off from the stamping device and for supplying the stamped lattice to a stamped lattice holder; and the drive member is configured to generate a linear movement of the stamping punch and comprises a servomotor with a spindle, and the spindle is connected to a tool carriage which carries and guides the stamping punch. ### Claim 2 (depends on 1) The stamping machine as claimed in claim 1, wherein the spindle is connected to the servomotor by a clutch. ### Claim 3 (depends on 1) The stamping machine as claimed in claim 1, wherein the spindle is directly connected to a shaft of the servomotor. ### Claim 4 (depends on 1) The stamping machine as claimed in claim 1, wherein the plurality of magnets are fastened spaced apart from the axes of the shafts, and each shaft is configured to be rotated and adjusted independently of the respective interacting rotatably driven roll about the axes of the shafts to adjust a mutual spacing, the mutual spacing being a distance between one said magnet of the plurality of magnets on one of said shafts and a corresponding one of the magnets of the plurality of magnets on another of said shafts. ### Claim 5 (depends on 4) The stamping machine as claimed in claim 4, further comprising, a first toothed wheel, which is at least partially encircled by a toothed belt, the first toothed wheel is fastened on an end of a first one of said interacting rotatably driven rolls, and the toothed belt is drivable by a drive motor such that during operation of the drive motor the toothed belt drives the first toothed wheel. ### Claim 6 (depends on 5) The stamping machine as claimed in claim 5, further comprising, a second toothed wheel fastened to an end of a second one of said interacting rotatably driven rolls, wherein the toothed belt has teeth on both sides and partially encircles the first and second toothed wheels such that during operation of the drive motor, the toothed belt drives the first and second toothed wheels simultaneously. ### Claim 7 (depends on 1) The stamping machine as claimed in claim 1, further comprising pairs of drivable conveyor rolls which are situated opposite each other in pairs arranged on the base plate of the die and are mounted to be floating in bearing housings arranged on the base plate. ### Claim 8 (depends on 7) The stamping machine as claimed in claim 7, wherein the bearing housings are mounted so that they can be raised and lowered perpendicularly to a surface of the base plate. ### Claim 9 (depends on 8) The stamping machine as claimed in claim 8, further comprising linear guides attached to the underside of the bearing housings and configured such that the bearing housings are displaceable vertically in bores in the base plate. ### Claim 10 (depends on 9) The stamping machine as claimed in claim 9, wherein the linear guides comprise roller cages. ### Claim 11 (depends on 10) The stamping machine as claimed in claim 10, axes of rotation of the pairs of conveyor rolls situated opposite each other extend coaxially and horizontally. ### Claim 12 (depends on 10) The stamping machine as claimed in claim 10, axes of rotation of the pairs of conveyor rolls situated opposite each other are arranged so that they extend at an acute angle to each other. ### Claim 13 (depends on 7) The stamping machine as claimed in claim 7, wherein there are two sets of, two pairs of the conveyor rolls, arranged in a rectangle, arranged on the base plate. ### Claim 14 (depends on 1) The stamping machine as claimed in claim 1, further comprising a stamped lattice rocker, which comprises a first deflection roller configured to deflect the incoming film as a dancer roll, inserted between the stamping device that includes the stamping tool and a pair of take-off rolls, and a second deflection roller arranged between the stamping device and the first deflection roller, and the first deflection roller is mounted to be displaceable parallel to an axis of rotation thereof. ### Claim 15 (depends on 14) The stamping machine as claimed in claim 14, wherein ends of the first deflection roller are mounted displaceably on guide rails or are movable axially parallel at ends of pivot arms on curved sections. ### Claim 16 (depends on 15) The stamping machine as claimed in claim 15, wherein the first deflection roller is held axially parallel and resiliently displaceable by at least one of spring elements, spring assemblies, or pneumatic cylinders. ### Claim 17 (depends on 16) The stamping machine as claimed in claim 16, wherein a position of the first deflection roller with respect to the take-off roller is measurable and adjustable by a position sensor. ### Claim 18 (depends on 17) The stamping machine as claimed in claim 17, wherein the first deflection roller is mounted at both ends in bearing blocks, and the bearing blocks are arranged on guide profiles to be displaceable in parallel. ### Claim 19 (depends on 17) The stamping machine as claimed in claim 17, wherein the pivot arms are pivotable by spring elements, spring assemblies, or pneumatic cylinders and are adjustably positionable. ### Claim 20 (depends on 1) A method for controlling the stamping stroke in the stamping machine as claimed in claim 1 for stamping labels and covers from a film for containers, the method comprising: performing stroke movements with a stamping punch; in a feed stroke, the stamping punch penetrating and cutting the film, and in a return stroke retracting the stamping punch to the starting position; and modifying the stroke movements in the feed and return strokes in terms of distance and time depending on a thickness and properties of the film being processed. ### Claim 21 (depends on 1) The stamping machine as claimed in claim 1, wherein the two interacting rotatably driven rolls are driven synchronously. ### Claim 22 (depends on 1) The stamping machine as claimed in claim 1, wherein inner raceways of the bearing rings are connected non-rotatably to the respective shafts and respective outer ones of the bearing rings carry the respective tubes.